# message="hello"
# message1=message+' '+'van'
# print(message1.title())
# print(0.2*0.1)
num1=2
num2=3.3
num3=7
num4=5.6
num5="10"
print(f'num1={num1},num2={num2}')
print("num3=%3d,num4=%.2f" % (num3,num4))
print(type(num1))
print(type(num2))

# int
print(int(num2))
print(type(int(num2)))
# float
print(float(num1))
print(float(num5))

# str
print((str(num2)))
print(type(str(num1)))

# tuple
list1=[10,20,30]
print(tuple(list1))
print(type(tuple(list1)))

# list()
t1=(100,200,300)
print(list(t1))
print(type(list(t1)))

# eval()
str2="1"
str3="1.1"
str4="(1000,2000,3000)"
str5="[1000,2000,3000]"


print(type(eval(str2)))
print(type(eval(str3)))
print(type(eval(str4)))
print(type(eval(str5)))